Headphone



FIG. 1 is a perspective view of a headphone showing my new design;

FIG. 2 is another perspective view thereof shown from an interior viewpoint;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a perspective view of another embodiment of a headphone showing my new design;

FIG. 8 is another perspective view thereof shown from an interior viewpoint of FIG. 7;

FIG. 9 is front elevational view of the headphone of FIG. 7;

FIG. 10 is a rear elevational view of the headphone of FIG. 7;

FIG. 11 is a side elevational view of the headphone of FIG. 7; and,

FIG. 12 is a bottom plan view of the headphone of FIG. 7.

The broken line showings form no part of the claimed design. 

CLAIM The ornamental design for a headphone, as shown and described. 